<script setup lang="ts">
  import type { SkuPopupEvent, SkuPopupInstance, SkuPopupLocaldata, } from '@/components/vk-data-goods-sku-popup/vk-data-goods-sku-popup'
  import { postMemberCartAPI } from '@/services/cart'
  import { getGoodsByIdAPI } from '@/services/goods'
  import type { GoodsResult } from '@/types/goods'
  import { onLoad } from '@dcloudio/uni-app'
  import { computed, ref } from 'vue'
  import AddressPanel from './components/AddressPanel.vue'
  import ServicePanel from './components/ServicePanel.vue'

  // 获取屏幕边界到安全区域距离
  const { safeAreaInsets } = uni.getSystemInfoSync()

  // 接收页面参数
  const query = defineProps<{
    id: string
  }>()

  // 获取商品详情信息
  const goods = ref<GoodsResult>()
  const getGoodsByIdData = async () => {
    const res = await getGoodsByIdAPI(query.id)
    goods.value = res.result
    // SKU组件所需格式
    localdata.value = {
      _id: res.result.id,
      name: res.result.name,
      goods_thumb: res.result.mainPictures[0],
      spec_list: res.result.specs.map((v) => {
        return {
          name: v.name,
          list: v.values,
        }
      }),
      sku_list: res.result.skus.map((v) => {
        return {
          _id: v.id,
          goods_id: res.result.id,
          goods_name: res.result.name,
          image: v.picture,
          price: v.price * 100, // 注意：需要乘以 100
          stock: v.inventory,
          sku_name_arr: v.specs.map((vv) => vv.valueName),
        }
      }),
    }
  }

  // 页面加载
  onLoad(() => {
    getGoodsByIdData()
  })

  // 轮播图变化时
  const currentIndex = ref(0)
  const onChange: UniHelper.SwiperOnChange = (ev) => {
    currentIndex.value = ev.detail.current
  }

  // 点击图片时
  const onTapImage = (url: string) => {
    // 大图预览
    uni.previewImage({
      current: url,
      urls: goods.value!.mainPictures,
    })
  }

  // uni-ui 弹出层组件 ref
  const popup = ref<{
    open: (type?: UniHelper.UniPopupType) => void
    close: () => void
  }>()

  // 弹出层条件渲染
  const popupName = ref<'address' | 'service'>()
  const openPopup = (name: typeof popupName.value) => {
    // 修改弹出层名称
    popupName.value = name
    popup.value?.open()
  }
  // 是否显示SKU组件
  const isShowSku = ref(false)
  // 商品信息
  const localdata = ref({} as SkuPopupLocaldata)
  // 按钮模式
  enum SkuMode {
    Both = 1,
    Cart = 2,
    Buy = 3,
  }
  const mode = ref<SkuMode>(SkuMode.Cart)
  // 打开SKU弹窗修改按钮模式
  const openSkuPopup = (val: SkuMode) => {
    // 显示SKU弹窗
    isShowSku.value = true
    // 修改按钮模式
    mode.value = val
  }
  // SKU组件实例
  const skuPopupRef = ref<SkuPopupInstance>()
  // 计算被选中的值
  const selectArrText = computed(() => {
    return skuPopupRef.value?.selectArr?.join(' ').trim() || '请选择商品规格'
  })
  // 加入购物车事件
  const onAddCart = async (ev: SkuPopupEvent) => {
    await postMemberCartAPI({ skuId: ev._id, count: ev.buy_num })
    uni.showToast({ title: '添加成功' })
    isShowSku.value = false
  }
  // 立即购买
  const onBuyNow = (ev: SkuPopupEvent) => {
    uni.navigateTo({ url: `/pagesOrder/create/create?skuId=${ev._id}&count=${ev.buy_num}` })
  }
</script>

<template>
  <!-- SKU弹窗组件 -->
  <vk-data-goods-sku-popup v-model="isShowSku" :localdata="localdata" :mode="mode" add-cart-background-color="#FFA868"
                           buy-now-background-color="#27BA9B" ref="skuPopupRef" :actived-style="{
                            color: '#27BA9B',
                            borderColor: '#27BA9B',
                            backgroundColor: '#E9F8F5',
                          }" @add-cart="onAddCart" @buy-now="onBuyNow" />
  <scroll-view enable-back-to-top scroll-y class="viewport">
    <!-- 基本信息 -->
    <view class="goods">
      <!-- 商品主图 -->
      <view class="preview">
        <swiper @change="onChange" circular>
          <swiper-item v-for="item in goods?.mainPictures" :key="item">
            <image class="image" @tap="onTapImage(item)" mode="aspectFill" :src="item" />
          </swiper-item>
        </swiper>
        <view class="indicator">
          <text class="current">{{ currentIndex + 1 }}</text>
          <text class="split">/</text>
          <text class="total">{{ goods?.mainPictures.length }}</text>
        </view>
      </view>

      <!-- 商品简介 -->
      <view class="meta">
        <view class="price">
          <text class="symbol">¥</text>
          <text class="number">{{ goods?.price }}</text>
        </view>
        <view class="name ellipsis">{{ goods?.name }}</view>
        <view class="desc"> {{ goods?.desc }} </view>
      </view>

      <!-- 操作面板 -->
      <view class="action">
        <view @tap="openSkuPopup(SkuMode.Both)" class="item arrow">
          <text class="label">选择</text>
          <text class="text ellipsis"> {{ selectArrText }} </text>
        </view>
        <view @tap="openPopup('address')" class="item arrow">
          <text class="label">送至</text>
          <text class="text ellipsis"> 请选择收获地址 </text>
        </view>
        <view @tap="openPopup('service')" class="item arrow">
          <text class="label">服务</text>
          <text class="text ellipsis"> 无忧退 快速退款 免费包邮 </text>
        </view>
      </view>
    </view>

    <!-- 商品详情 -->
    <view class="detail panel">
      <view class="title">
        <text>详情</text>
      </view>
      <view class="content">
        <view class="properties">
          <!-- 属性详情 -->
          <view class="item" v-for="item in goods?.details.properties" :key="item.name">
            <text class="label">{{ item.name }}</text>
            <text class="value">{{ item.value }}</text>
          </view>
        </view>
        <!-- 图片详情 -->
        <image class="image" v-for="item in goods?.details.pictures" :key="item" mode="widthFix" :src="item"></image>
      </view>
    </view>

    <!-- 同类推荐 -->
    <view class="similar panel">
      <view class="title">
        <text>同类推荐</text>
      </view>
      <view class="content">
        <navigator v-for="item in goods?.similarProducts" :key="item.id" class="goods" hover-class="none"
                   :url="`/pages/goods/goods?id=${item.id}`">
          <image class="image" mode="aspectFill" :src="item.picture"></image>
          <view class="name ellipsis">{{ item.name }}</view>
          <view class="price">
            <text class="symbol">¥</text>
            <text class="number">{{ item.price }}</text>
          </view>
        </navigator>
      </view>
    </view>
  </scroll-view>

  <!-- 用户操作 -->
  <view v-if="goods" class="toolbar" :style="{ paddingBottom: safeAreaInsets?.bottom + 'px' }">
    <view class="icons">
      <button class="icons-button"><text class="icon-heart"></text>收藏</button>
      <!-- #ifdef MP-WEIXIN -->
      <button class="icons-button" open-type="contact">
        <text class="icon-handset"></text>客服
      </button>
      <!-- #endif -->
      <navigator class="icons-button" url="/pages/cart/cart2" open-type="navigate">
        <text class="icon-cart"></text>购物车
      </navigator>
    </view>
    <view class="buttons">
      <view @tap="openSkuPopup(SkuMode.Cart)" class="addcart"> 加入购物车 </view>
      <view @tap="openSkuPopup(SkuMode.Buy)" class="payment"> 立即购买 </view>
    </view>
  </view>

  <!-- uni-ui 弹出层 -->
  <uni-popup ref="popup" type="bottom" background-color="#fff">
    <AddressPanel v-if="popupName === 'address'" @close="popup?.close()" />
    <ServicePanel v-if="popupName === 'service'" @close="popup?.close()" />
  </uni-popup>
</template>

<style lang="scss">
  page {
    height: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
  }

  .viewport {
    background-color: #f4f4f4;
  }

  .panel {
    margin-top: 20rpx;
    background-color: #fff;

    .title {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 90rpx;
      line-height: 1;
      padding: 30rpx 60rpx 30rpx 6rpx;
      position: relative;

      text {
        padding-left: 10rpx;
        font-size: 28rpx;
        color: #333;
        font-weight: 600;
        border-left: 4rpx solid #27ba9b;
      }

      navigator {
        font-size: 24rpx;
        color: #666;
      }
    }
  }

  .arrow {
    &::after {
      position: absolute;
      top: 50%;
      right: 30rpx;
      content: '\e6c2';
      color: #ccc;
      font-family: 'erabbit' !important;
      font-size: 32rpx;
      transform: translateY(-50%);
    }
  }

  /* 商品信息 */
  .goods {
    background-color: #fff;

    .preview {
      height: 750rpx;
      position: relative;

      .image {
        width: 750rpx;
        height: 750rpx;
      }

      .indicator {
        height: 40rpx;
        padding: 0 24rpx;
        line-height: 40rpx;
        border-radius: 30rpx;
        color: #fff;
        font-family: Arial, Helvetica, sans-serif;
        background-color: rgba(0, 0, 0, 0.3);
        position: absolute;
        bottom: 30rpx;
        right: 30rpx;

        .current {
          font-size: 26rpx;
        }

        .split {
          font-size: 24rpx;
          margin: 0 1rpx 0 2rpx;
        }

        .total {
          font-size: 24rpx;
        }
      }
    }

    .meta {
      position: relative;
      border-bottom: 1rpx solid #eaeaea;

      .price {
        height: 130rpx;
        padding: 25rpx 30rpx 0;
        color: #fff;
        font-size: 34rpx;
        box-sizing: border-box;
        background-color: #35c8a9;
      }

      .number {
        font-size: 56rpx;
      }

      .brand {
        width: 160rpx;
        height: 80rpx;
        overflow: hidden;
        position: absolute;
        top: 26rpx;
        right: 30rpx;
      }

      .name {
        max-height: 88rpx;
        line-height: 1.4;
        margin: 20rpx;
        font-size: 32rpx;
        color: #333;
      }

      .desc {
        line-height: 1;
        padding: 0 20rpx 30rpx;
        font-size: 24rpx;
        color: #cf4444;
      }
    }

    .action {
      padding-left: 20rpx;

      .item {
        height: 90rpx;
        padding-right: 60rpx;
        border-bottom: 1rpx solid #eaeaea;
        font-size: 26rpx;
        color: #333;
        position: relative;
        display: flex;
        align-items: center;

        &:last-child {
          border-bottom: 0 none;
        }
      }

      .label {
        width: 60rpx;
        color: #898b94;
        margin: 0 16rpx 0 10rpx;
      }

      .text {
        flex: 1;
        -webkit-line-clamp: 1;
      }
    }
  }

  /* 商品详情 */
  .detail {
    padding-left: 20rpx;

    .content {
      margin-left: -20rpx;

      .image {
        width: 100%;
      }
    }

    .properties {
      padding: 0 20rpx;
      margin-bottom: 30rpx;

      .item {
        display: flex;
        line-height: 2;
        padding: 10rpx;
        font-size: 26rpx;
        color: #333;
        border-bottom: 1rpx dashed #ccc;
      }

      .label {
        width: 200rpx;
      }

      .value {
        flex: 1;
      }
    }
  }

  /* 同类推荐 */
  .similar {
    .content {
      padding: 0 20rpx 20rpx;
      background-color: #f4f4f4;
      display: flex;
      flex-wrap: wrap;

      .goods {
        width: 340rpx;
        padding: 24rpx 20rpx 20rpx;
        margin: 20rpx 7rpx;
        border-radius: 10rpx;
        background-color: #fff;
      }

      .image {
        width: 300rpx;
        height: 260rpx;
      }

      .name {
        height: 80rpx;
        margin: 10rpx 0;
        font-size: 26rpx;
        color: #262626;
      }

      .price {
        line-height: 1;
        font-size: 20rpx;
        color: #cf4444;
      }

      .number {
        font-size: 26rpx;
        margin-left: 2rpx;
      }
    }

    navigator {
      &:nth-child(even) {
        margin-right: 0;
      }
    }
  }

  /* 底部工具栏 */
  .toolbar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: calc((var(--window-bottom)));
    z-index: 1;
    background-color: #fff;
    height: 100rpx;
    padding: 0 20rpx;
    border-top: 1rpx solid #eaeaea;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: content-box;

    .buttons {
      display: flex;

      &>view {
        width: 220rpx;
        text-align: center;
        line-height: 72rpx;
        font-size: 26rpx;
        color: #fff;
        border-radius: 72rpx;
      }

      .addcart {
        background-color: #ffa868;
      }

      .payment {
        background-color: #27ba9b;
        margin-left: 20rpx;
      }
    }

    .icons {
      padding-right: 20rpx;
      display: flex;
      align-items: center;
      flex: 1;

      // 兼容 H5 端和 App 端的导航链接样式
      .navigator-wrap,
      .icons-button {
        flex: 1;
        text-align: center;
        line-height: 1.4;
        padding: 0;
        margin: 0;
        border-radius: 0;
        font-size: 20rpx;
        color: #333;
        background-color: #fff;

        &::after {
          border: none;
        }
      }

      text {
        display: block;
        font-size: 34rpx;
      }
    }
  }
</style>
